The 1915/16 Prize Models manual that was only available in America was completely different to the 1914/5 edition. It incudes a variety of models that were new in the 1916 Book 1 manual

Note that from 1928 to 1936, the 'Standard Mechanisms' and 'How to Use Meccano Parts manuals' were included in the hardback bound outfit manuals supplied with the largest outfits.

So far three American editions of the pre-war Standard Mechanisms manual has been found (1928-9). However there are likly to others as the manual was advertised in American manuals from 1926.

The post-war edition of the Standard Mechanisms manual was published for America only. This a cut-down version of the pre-war manual with a number of mechanisms deleted - mainly all those mechanisms which featured motors or the pre-war electrical parts. It is not dated, but is thought to date from the late 1940s during the time that H. Hudson Dodson were promoting Meccano in the USA.